Re: experimental new dump

[PA <petite.abeille@...>]

On Jun 22, 2007, at 23:03, Luiz Henrique de Figueiredo wrote:

> This change should make precompiled chunks smaller and probably faster
> to load. I'd like feedback on this change: if you have reasonably large
> Lua programs for which you may be able to measure any difference in 
> size
> and time to load them in precompiled form, I'd appreciate hearing from
> you.

Here are some numbers related to a HTTP server implemented in Lua:

+------+-------+-------+-------+
| size |   lua |  luac |  dump |
+------+-------+-------+-------+
| HTTP | 13291 |  8101 |  7593 |
| MIME | 15752 | 12311 | 11899 |
| URL  | 12030 |  7566 |  7197 |
+------+-------+-------+-------+

Marginal impact on size.

The impact of the different compilation modes is measured indirectly by 
recording how many requests the server can handle per seconds:

% tcpserver -o -D -H -l -R 0 1080 lua TestHTTP.lua
% ab -n 1000 -c 10 http://localhost:1080/hello

+-------+-------+-------+
|   lua |  luac |  dump |
+-------+-------+-------+
| 57.43 | 89.48 | 87.48 |
+-------+-------+-------+

Marginal impact on load time.

Cheers,

PA.